Combo Overlay

Create your own overlays by adding formulas to existing overlays and/or combining them. Reduce GIS post-processing. The new Combo Overlay can combine results from up to 3 grid overlays. It supports all basic operators (e.g. add, max, avg, sqrt, less than, equals) and it supports timeframes and globals. The Average, WWL and Watershed Overlays support Combo Overlays as input.

Documentation:

https://support.tygron.com/wiki/Combo_Overlay